diff --git a/dirt_monster.lua b/dirt_monster.lua
index 3206e21..2586f40 100644
--- a/dirt_monster.lua
+++ b/dirt_monster.lua
@@ -62,7 +62,7 @@ mobs:spawn({
 	nodes = {spawn_on},
 	min_light = 0,
 	max_light = 7,
-	chance = 7000,
+	chance = 6000,
 	active_object_count = 2,
 	min_height = 0,
 	day_toggle = false,
diff --git a/stone_monster.lua b/stone_monster.lua
index 2351448..bc6f6b8 100644
--- a/stone_monster.lua
+++ b/stone_monster.lua
@@ -56,7 +56,7 @@ mobs:register_mob("mobs_monster:stone_monster", {
 
 mobs:spawn({
 	name = "mobs_monster:stone_monster",
-	nodes = {"default:stone", "default:desert_stone"},
+	nodes = {"default:stone", "default:desert_stone", "default:sandstone"},
 	max_light = 7,
 	chance = 7000,
 	max_height = 0,